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Finding the Fourth Proportional to 245,765.88, 368,058.30 and 140,265

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Solution

The fourth proportional to 245,765.88, 368,058.30 and 140,265 is: 210,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,765.88 : 368,058.30 = 140,265 : x
  2. Step 2: Convert to fraction form
    245,765.88/368,058.30 = 140,265/x
  3. Step 3: Cross multiply
    245,765.88x = 368,058.30 × 140,265
  4. Step 4: Simplify right side
    245,765.88x = 51,625,697,449.50
  5. Step 5: Solve for x
    x = 51,625,697,449.50/245,765.88
  6. Step 6: Final answer
    x = 210,060.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.